Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1975-11-03
1977-02-08
Krawczewicz, Stanley T.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313112, 313113, 350156, 357 17, A47B 8800, A47B 9500
Patent
active
040073963
ABSTRACT:
An LED display is provided with a reflective surface over those parts of the display which do not themselves emit light. This enables a polarizer to be used to enhance the display contrast under conditions of bright ambient light.
REFERENCES:
patent: 3290539 (1966-12-01), Lamorte
patent: 3781584 (1973-12-01), Kingsbury
patent: 3797913 (1974-03-01), Mori et al.
patent: 3799647 (1974-03-01), Luft
patent: 3883772 (1975-05-01), Wako et al.
Kimber Paul Kevin
Wisbey Philip Henry
Krawczewicz Stanley T.
The Marconi Company Limited
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